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Copy file name to clipboardExpand all lines: articles/virtual-machines/dsv6-ddsv6-series.md
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@@ -5,19 +5,19 @@ author: misha-bansal # GitHub alias
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ms.author: mishabansal # Microsoft alias
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ms.service: virtual-machines
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ms.topic: feature-availability
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ms.date: 05/01/2024
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ms.date: 07/16/2024
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ms.subservice: sizes
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---
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# **Dsv6 and Ddsv6-series (Preview)**
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# Dsv6 and Ddsv6-series (Preview)
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Applies to ✔️ Linux VMs ✔️ Windows VMs ✔️ Flexible scale sets ✔️ Uniform scale sets
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>[!NOTE]
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>Azure Virtual Machine Series Dsv6 and Ddsv6 are currently in **Preview**. See the [Preview Terms Of Use | Microsoft Azure](https://azure.microsoft.com/en-us/support/legal/preview-supplemental-terms/) for legal terms that apply to Azure features that are in beta, preview, or otherwise not yet released into general availability.
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>Azure Virtual Machine Series Dsv6 and Ddsv6 are currently in **Preview**. See the [Preview Terms Of Use | Microsoft Azure](https://azure.microsoft.com/support/legal/preview-supplemental-terms/) for legal terms that apply to Azure features that are in beta, preview, or otherwise not yet released into general availability.
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The new Dsv6 and Ddsv6 VM series will only work on OS images that are tagged with NVMe support. If your current OS image is not supported for NVMe, you’ll see an error message. NVMe support is available in 50+ of the most popular OS images, and we continuously improve the OS image coverage. Please refer to our up-to-date [**lists**](https://learn.microsoft.com/en-us/azure/virtual-machines/enable-nvme-interface) for information on which OS images are tagged as NVMe supported. For more information on NVMe enablement, see our [**FAQ**](https://learn.microsoft.com/en-us/azure/virtual-machines/enable-nvme-faqs).
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The new Dsv6 and Ddsv6 VM series will only work on OS images that are tagged with NVMe support. If your current OS image is not supported for NVMe, you’ll see an error message. NVMe support is available in 50+ of the most popular OS images, and we continuously improve the OS image coverage. Please refer to our up-to-date [**lists**](https://learn.microsoft.com/azure/virtual-machines/enable-nvme-interface) for information on which OS images are tagged as NVMe supported. For more information on NVMe enablement, see our [**FAQ**](https://learn.microsoft.com/azure/virtual-machines/enable-nvme-faqs).
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The new Dsv6 and Ddsv6 VM series virtual machines public preview is now available. To get more information or sign up for the preview, please visit our announcement and follow the link to the sign-up form. This is an opportunity to experience our latest innovation.
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Dsv6-series virtual machines do not have any temporary storage thus lowering the price of entry. You can attach Standard SSDs, Standard HDDs, Premium SSDs, and Premium SSD V2 disk storage to these virtual machines. You can also attach Ultra Disk storage based on its regional availability. Disk storage is billed separately from virtual machines.
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[Premium Storage](https://learn.microsoft.com/en-us/azure/virtual-machines/premium-storage-performance): Supported <br>[Premium Storage caching](https://learn.microsoft.com/en-us/azure/virtual-machines/premium-storage-performance): Supported <br>Live Migration: Not Supported for Preview <br>Memory Preserving Updates: Supported <br>[VM Generation Support](https://learn.microsoft.com/en-us/azure/virtual-machines/generation-2): Generation 2 <br>[Accelerated Networking](https://learn.microsoft.com/en-us/azure/virtual-network/create-vm-accelerated-networking-cli): Supported <br>[Ephemeral OS Disks](https://learn.microsoft.com/en-us/azure/virtual-machines/ephemeral-os-disks): Not Supported for Preview<br>[Nested Virtualization](https://learn.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/nested-virtualization): Supported
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[Premium Storage](https://learn.microsoft.com/azure/virtual-machines/premium-storage-performance): Supported <br>[Premium Storage caching](https://learn.microsoft.com/azure/virtual-machines/premium-storage-performance): Supported <br>Live Migration: Not Supported for Preview <br>Memory Preserving Updates: Supported <br>[VM Generation Support](https://learn.microsoft.com/azure/virtual-machines/generation-2): Generation 2 <br>[Accelerated Networking](https://learn.microsoft.com/azure/virtual-network/create-vm-accelerated-networking-cli): Supported <br>[Ephemeral OS Disks](https://learn.microsoft.com/azure/virtual-machines/ephemeral-os-disks): Not Supported for Preview<br>[Nested Virtualization](https://learn.microsoft.com/virtualization/hyper-v-on-windows/user-guide/nested-virtualization): Supported
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|**Size**|**vCPU**|**Memory: GiB**|**Temp storage (SSD) GiB**|**Max data disks**|**Max temp storage throughput: IOPS/MBPS (RR)**|**Max temp storage throughput: IOPS/MBPS (RW)**|**Max****uncached Premium SSD and Standard SSD/HDD disk throughput: IOPS/MBps**|**Max burst****uncached Premium SSD and Standard SSD/HDD disk throughput: IOPS/MBps**|**Max****uncached Ultra Disk and Premium SSD V2 disk throughput: IOPS/MBps**|**Max burst****uncached Ultra Disk and Premium SSD V2 disk throughput: IOPS/MBps**|**Max NICs**|**Network bandwidth**|
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Ddsv6-series virtual machines offer local storage disks. You can attach Standard SSDs, Standard HDDs, Premium SSDs, and Premium SSD V2 disk storage to these virtual machines. You can also attach Ultra Disk storage based on its regional availability. Disk storage is billed separately from virtual machines.
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[Premium Storage](https://learn.microsoft.com/en-us/azure/virtual-machines/premium-storage-performance): Supported <br>[Premium Storage caching](https://learn.microsoft.com/en-us/azure/virtual-machines/premium-storage-performance): Supported <br>[Live Migration](https://learn.microsoft.com/en-us/azure/virtual-machines/maintenance-and-updates): Not Supported for Preview <br>[Memory Preserving Updates](https://learn.microsoft.com/en-us/azure/virtual-machines/maintenance-and-updates): Supported <br>[VM Generation Support](https://learn.microsoft.com/en-us/azure/virtual-machines/generation-2): Generation 2<br>[Accelerated Networking](https://learn.microsoft.com/en-us/azure/virtual-network/create-vm-accelerated-networking-cli): Supported <br>[Ephemeral OS Disks](https://learn.microsoft.com/en-us/azure/virtual-machines/ephemeral-os-disks): Not Supported for Preview <br>[Nested Virtualization](https://learn.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/nested-virtualization): Supported
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[Premium Storage](https://learn.microsoft.com/azure/virtual-machines/premium-storage-performance): Supported <br>[Premium Storage caching](https://learn.microsoft.com/azure/virtual-machines/premium-storage-performance): Supported <br>[Live Migration](https://learn.microsoft.com/azure/virtual-machines/maintenance-and-updates): Not Supported for Preview <br>[Memory Preserving Updates](https://learn.microsoft.com/azure/virtual-machines/maintenance-and-updates): Supported <br>[VM Generation Support](https://learn.microsoft.com/azure/virtual-machines/generation-2): Generation 2<br>[Accelerated Networking](https://learn.microsoft.com/azure/virtual-network/create-vm-accelerated-networking-cli): Supported <br>[Ephemeral OS Disks](https://learn.microsoft.com/azure/virtual-machines/ephemeral-os-disks): Not Supported for Preview <br>[Nested Virtualization](https://learn.microsoft.com/virtualization/hyper-v-on-windows/user-guide/nested-virtualization): Supported
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|**Size**|**vCPU**|**Memory: GiB**|**Temp storage (SSD) GiB**|**Max data disks**|**Max temp storage throughput: IOPS/MBPS (RR)**|**Max temp storage throughput: IOPS/MBPS (RW)**|**Max****uncached Premium SSD and Standard SSD/HDD disk throughput: IOPS/MBps**|**Max burst****uncached Premium SSD and Standard SSD/HDD disk throughput: IOPS/MBps**|**Max****uncached Ultra Disk and Premium SSD V2 disk throughput: IOPS/MBps**|**Max burst****uncached Ultra Disk and Premium SSD V2 disk throughput: IOPS/MBps**|**Max NICs**|**Network bandwidth**|
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Data disks can operate in cached or uncached modes. For cached data disk operation, the host cache mode is set to **ReadOnly** or **ReadWrite**. For uncached data disk operation, the host cache mode is set to **None**.
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To learn how to get the best storage performance for your VMs, see [Virtual machine and disk performance](https://learn.microsoft.com/en-us/azure/virtual-machines/disks-performance).
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To learn how to get the best storage performance for your VMs, see [Virtual machine and disk performance](https://learn.microsoft.com/azure/virtual-machines/disks-performance).
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**Expected network bandwidth** is the maximum aggregated bandwidth allocated per VM type across all NICs, for all destinations. For more information, see [Virtual machine network bandwidth](https://learn.microsoft.com/en-us/azure/virtual-network/virtual-machine-network-throughput).
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**Expected network bandwidth** is the maximum aggregated bandwidth allocated per VM type across all NICs, for all destinations. For more information, see [Virtual machine network bandwidth](https://learn.microsoft.com/azure/virtual-network/virtual-machine-network-throughput).
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Upper limits aren't guaranteed. Limits offer guidance for selecting the right VM type for the intended application. Actual network performance will depend on several factors including network congestion, application loads, and network settings. For information on optimizing network throughput, see [Optimize network throughput for Azure virtual machines](https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-optimize-network-bandwidth). To achieve the expected network performance on Linux or Windows, you may need to select a specific version or optimize your VM. For more information, see [Bandwidth/Throughput testing (NTTTCP)](https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-bandwidth-testing).
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Upper limits aren't guaranteed. Limits offer guidance for selecting the right VM type for the intended application. Actual network performance will depend on several factors including network congestion, application loads, and network settings. For information on optimizing network throughput, see [Optimize network throughput for Azure virtual machines](https://learn.microsoft.com/azure/virtual-network/virtual-network-optimize-network-bandwidth). To achieve the expected network performance on Linux or Windows, you may need to select a specific version or optimize your VM. For more information, see [Bandwidth/Throughput testing (NTTTCP)](https://learn.microsoft.com/azure/virtual-network/virtual-network-bandwidth-testing).
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